Shared memory is initialized by CRM and used by
other drivers; with CRM not active other drivers
would fail to access the shared memory if
memory manager is deinit. Reader Writer locks can
prevent the open/close/ioctl calls from other drivers
if CRM open/close is already being processed.
Issue observed with the below sequence if drivers
are opened from UMD directly without this change.
CRM Open successful,ICP open successful,
CRM close in progress, ICP open successful,
mem mgr deinit and CRM close successful,
ICP tries to access HFI memory and result in crash.
This change helps to serialze the calls and prevents
issue.
CRs-Fixed: 3019488
Change-Id: I84d50918713686a067c0e3deb64c9c6ae9edfcb5
Signed-off-by: Tejas Prajapati <quic_tpraja@quicinc.com>
Upon Page Fault, smmu driver invokes faulted client's callback
which looks for faulted buffer and context. The client driver
can be ISP, ICP, JPEG, IFE CDM and CPAS CDM. The driver then
fills PF msg struct, logs related info, and notify PF msg to
userspace. Userspace is expected to abort and calls to shut
down kernel drivers. When Titan powers on next session, CAMSS
undergoes async reset.
This change also ensures the page fault related changes added
to TFE, OPE, CRE do not break the drivers compilation.
CRs-Fixed: 3156671
Change-Id: Icd6c8c9a38cac206fe8260d374d03964fb280879
Signed-off-by: sokchetra eung <quic_eung@quicinc.com>
In subdev close call if CRM is still active wait for shutdown
from CRM [media device]. Remove subdevice check for active
handles, shutdown to happen irrespective of any active context.
If CRM is not active, subdevice shutdown should ensure there is
no access to kernel allocated buffers since at this point
memmgr is de-initialized.
As part of ICP close, remove usage of HFI queues, trigger PIL
to transfer FW memory ownership back to HLOS and power off ICP.
CRs-Fixed: 2976107
Change-Id: Ib05b3fbdcc33f4072da7ef77cf0118a807860e8c
Signed-off-by: Karthik Anantha Ram <kartanan@codeaurora.org>
when provider crash occurred, there was a CSID lane overflow
observed due to shutdown sequence from CRM(sensor, csid, csiphy).
To fix the issue need to change the shutdown sequence
(csid, sensor, csiphy).
This change will update the devices sequence in order while registering
and close the sequence accordingly.
CRs-Fixed: 2852076
Change-Id: Ia6d8022e995823bf031400c33528eb8544dc2e29
Signed-off-by: Alok Chauhan <alokc@codeaurora.org>
Currently when page fault happen, iommu driver callers camera
handler with CB details and iova address which caused the page
fault. With iommu iova address cam smmu driver finds the
closest mapping address for that cb and call the
corresponding driver to find the which port caused page fault.
This has limitation has page fault address always not mapped.
New approach is get the page fault ids from iommu driver.
Based on the Pid and Mid values, get the HW id and port ids,
go through all context which has this hw id and port id and log
the data. Once context id is identified, log the acquire data and
last consumed client address details. Dump the hw register data
in the given buffer. Send the smmu page fault event through
v4l2 queue to user.
CRs-Fixed: 2750690
Change-Id: I87c809b3229992c7c95655a4f3c6c70ebc035ae8
Signed-off-by: Ravikishore Pampana <rpampana@codeaurora.org>
Due to the asynchronous nature of platform probes, inter
dependency between drivers needs to be taken care during
kernel boot up. Component helper provides the facility of
adding matching drivers in a list ordered in the way we want
to bind those drivers. The CRM driver acts as component master
to make sure all slave drivers are bound before it returns
from its own bind call. Add support for serializing platform
probes through component framework.
CRs-Fixed: 2584631
Change-Id: I345da1d2b9cccf6021ac6fc899143013b7714ec4
Signed-off-by: Mukund Madhusudan Atre <matre@codeaurora.org>
OPE is camera offline engine, support is added
to enable camera OPE hardware.
CRs-Fixed: 2594541
Change-Id: I65c69f5763d05abf265b645b09c95c55fb290182
Signed-off-by: Suresh Vankadara <svankada@codeaurora.org>
Signed-off-by: Ravikishore Pampana <rpampana@codeaurora.org>
Signed-off-by: Trishansh Bhardwaj <tbhardwa@codeaurora.org>
